/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 平滑滚动优化 */
html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    overflow-x: hidden;
}

/* 登录页面样式 */
.login-container {
    position: relative;
    z-index: 2;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.login-box {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.login-header {
    margin-bottom: 30px;
}

.logo {
    margin-bottom: 20px;
}

.money-icon {
    font-size: 48px;
    display: block;
    margin-bottom: 10px;
}

.login-header h1 {
    color: #333;
    margin-bottom: 10px;
    font-size: 28px;
    font-weight: 600;
}

.login-header p {
    color: #666;
    margin-bottom: 30px;
}

.role-selector {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
    justify-content: center;
}

.role-btn {
    padding: 10px 20px;
    border: 2px solid #ddd;
    background: white;
    color: #666;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
}

.role-btn.active {
    border-color: #667eea;
    background: #667eea;
    color: white;
}

.role-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.form-group {
    margin-bottom: 20px;
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #333;
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #ddd;
    border-radius: 10px;
    font-size: 16px;
    transition: border-color 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: #667eea;
}

.login-btn {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 10px;
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
}

.login-footer {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #eee;
    font-size: 12px;
    color: #666;
}

.login-footer p {
    margin: 5px 0;
}

/* 仪表板样式 */
.dashboard-container {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 250px;
    background: #2c3e50;
    color: white;
    padding: 20px 0;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.sidebar-header {
    padding: 0 20px 20px;
    border-bottom: 1px solid #34495e;
}

.sidebar-header h2 {
    font-size: 20px;
    margin-bottom: 5px;
}

.sidebar-header p {
    font-size: 14px;
    opacity: 0.7;
}

.nav-menu {
    padding: 20px 0;
}

.nav-item {
    padding: 12px 20px;
    cursor: pointer;
    transition: background 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
    position: relative;
    overflow: hidden;
}

.nav-item:hover {
    background: #34495e;
}

.nav-item.active {
    background: #3498db;
}

.nav-item i {
    width: 20px;
}

.nav-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    transition: left 0.5s;
}

.nav-item:active::before {
    left: 100%;
}

.main-content {
    flex: 1;
    margin-left: 250px;
    padding: 20px;
    background: #f8f9fa;
}

.header {
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
}

.header h1 {
    color: #2c3e50;
    margin-bottom: 10px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: white;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.stat-card h3 {
    color: #2c3e50;
    margin-bottom: 10px;
    font-size: 18px;
}

.stat-card .number {
    font-size: 36px;
    font-weight: bold;
    color: #3498db;
    margin-bottom: 5px;
}

.stat-card .change {
    font-size: 14px;
    color: #27ae60;
}

.content-section {
    background: white;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
    scroll-margin-top: 20px;
    transition: all 0.3s ease;
}

.content-section.active {
    animation: fadeInUp 0.5s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.content-section h2 {
    color: #2c3e50;
    margin-bottom: 20px;
    font-size: 20px;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
}

.data-table th,
.data-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #eee;
}

.data-table th {
    background: #f8f9fa;
    font-weight: 600;
    color: #2c3e50;
}

.data-table tr:hover {
    background: #f8f9fa;
}

.btn {
    padding: 8px 16px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background: #3498db;
    color: white;
}

.btn-success {
    background: #27ae60;
    color: white;
}

.btn-warning {
    background: #f39c12;
    color: white;
}

.btn-danger {
    background: #e74c3c;
    color: white;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.logout-btn {
    position: absolute;
    bottom: 20px;
    left: 20px;
    right: 20px;
    padding: 12px;
    background: #e74c3c;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background 0.3s ease;
}

.logout-btn:hover {
    background: #c0392b;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        height: auto;
        position: relative;
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .login-box {
        margin: 20px;
        padding: 30px 20px;
    }
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #3498db;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 通知样式 */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 15px 20px;
    border-radius: 5px;
    color: white;
    z-index: 1000;
    animation: slideIn 0.3s ease;
}

.notification.success {
    background: #27ae60;
}

.notification.error {
    background: #e74c3c;
}

.notification.warning {
    background: #f39c12;
}

@keyframes slideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* 模态框样式 */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: white;
    margin: 5% auto;
    padding: 0;
    border-radius: 15px;
    width: 90%;
    max-width: 600px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    animation: slideIn 0.3s ease-out;
    max-height: 80vh;
    overflow-y: auto;
}

.modal-header {
    padding: 20px 25px;
    border-bottom: 1px solid #eee;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 15px 15px 0 0;
}

.modal-header h3 {
    margin: 0;
    font-size: 20px;
    font-weight: 600;
}

.close {
    color: white;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: opacity 0.3s ease;
}

.close:hover {
    opacity: 0.7;
}

.modal-body {
    padding: 25px;
}

.modal-body .form-group {
    margin-bottom: 20px;
}

.modal-body .form-group label {
    display: block;
    margin-bottom: 8px;
    color: #333;
    font-weight: 500;
    font-size: 14px;
}

.modal-body .form-group input,
.modal-body .form-group select {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 14px;
    transition: border-color 0.3s ease;
    background: white;
}

.modal-body .form-group input:focus,
.modal-body .form-group select:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.modal-body .form-group input[readonly] {
    background-color: #f8f9fa;
    color: #666;
}

.form-actions {
    display: flex;
    gap: 15px;
    justify-content: flex-end;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

.form-actions .btn {
    padding: 12px 25px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
    margin: 5px 0;
}

.form-actions .btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.form-actions .btn-secondary {
    background: #6c757d;
    color: white;
}

.form-actions .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

/* 按钮尺寸变体 */
.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
}

.btn-lg {
    padding: 15px 30px;
    font-size: 16px;
}

/* 表格操作按钮样式 */
.data-table .btn {
    margin: 0 2px;
}

/* 响应式模态框 */
@media (max-width: 768px) {
    .modal-content {
        width: 95%;
        margin: 10% auto;
        max-height: 85vh;
    }
    
    .modal-header {
        padding: 15px 20px;
    }
    
    .modal-body {
        padding: 20px;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .form-actions .btn {
        width: 100%;
    }
}

/* 平滑滚动优化 */
html {
    scroll-behavior: smooth;
}

/* 内容区域优化 */
.content-section {
    scroll-margin-top: 20px;
    transition: all 0.3s ease;
}

.content-section.active {
    animation: fadeInUp 0.5s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 导航项点击效果 */
.nav-item {
    position: relative;
    overflow: hidden;
}

.nav-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    transition: left 0.5s;
}

.nav-item:active::before {
    left: 100%;
}
